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Related to vanquishment: vanquishing
tr.v. van·quished, van·quish·ing, van·quish·es
a. To defeat or conquer in battle; subjugate.
b. To defeat in a contest, conflict, or competition. See Synonyms at defeat.
2. To overcome or subdue (an emotion, for example); suppress: "She had had to wrench herself forcibly away from Katharine, and every step vanquished her desire" (Virginia Woolf).
[Middle English vaynquisshen, from Old French vainquir, vainquiss-, from Latin vincere; see weik- in Indo-European roots.]